NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

DECORAH prefixes in area code 563

NANPA records 11 assigned NXX blocks to rate center DECORAH in area code 563, 2.8% of the 388 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 7 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA (2), AIRUS, INC - IA (2), UNITED STATES CELLULAR - IA (2). The earliest assignment on record here is 2010-03-19 and the most recent 2021-06-03. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 2.8% of 563
7 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
563-202 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 2013-12-24 yes yes
563-277 MCC TELEPHONY LLC 2010-03-19 yes yes
563-287 AIRUS, INC - IA 2019-11-26 yes yes
563-334 AIRUS, INC - IA 2018-02-07 yes yes
563-379 UNITED STATES CELLULAR - IA – yes yes
563-380 UNITED STATES CELLULAR - IA – yes yes
563-382 Lumen QWEST CORPORATION – no yes
563-387 Lumen QWEST CORPORATION – yes yes
563-419 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA – no yes
563-517 T-Mobile T-MOBILE USA, INC. – yes yes
563-644 TON80 COMMUNICATIONS, LLC 2021-06-03 yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA Verizon 2 18.2%
AIRUS, INC - IA – 2 18.2%
UNITED STATES CELLULAR - IA – 2 18.2%
QWEST CORPORATION Lumen 2 18.2%
MCC TELEPHONY LLC – 1 9.1%
T-MOBILE USA, INC. T-Mobile 1 9.1%
TON80 COMMUNICATIONS, LLC – 1 9.1%

Frequently asked

Which prefixes belong to DECORAH in area code 563?

11 blocks: 202, 277, 287, 334, 379, 380, 382, 387, 419, 517, 644. The table above gives the holder of each.

Which carriers have numbers in DECORAH?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA (2 blocks), AIRUS, INC - IA (2 blocks), UNITED STATES CELLULAR - IA (2 blocks), QWEST CORPORATION (2 blocks), MCC TELEPHONY LLC (1 block), T-MOBILE USA, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DECORAH a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 563

All 388 prefixes in 563